The Onsen 10L Portable Tankless water heater allows you to enjoy a hot shower outside anytime, anywhere. Ideal for heating spring / fall water temperatures below 50°F / 10°C, it turns cold water into instant hot water on demand and has an electronic ignition activated by water pressure and flow. Featuring a premium shower head, digital screen and included 12V battery clips, the Onsen 10L runs on a standard propane tank and is perfect for hunting camps, off-grid cabins, camping, boating, pet grooming, horse trailers, stables or simply rinsing off by the pool. Working in combination with the Onsen 3.0 Diaphragm RV / Marine 12V Water Pump, the Onsen 10L will provide the comfort of instant, pressurized, hot water in any off-grid situation. The addition of the Onsen 1L Accumulator Tank ensures even water flow by acting as a pressure buffer for the pump and thus provides better control of hot water temperatures.